<!DOCTYPE html>
<html>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
	<title>模板标签</title>
	<style type="text/css">
	
	ul {
		list-style: none;
		margin: 10px 0;
		border: 1px dotted #aaa;
	}

	li{
		widows: 300px;
		padding: 5px 0;
	}

    </style>
</head>
<body>
	<div class="container">
		<h1>模板标签</h1>
		<div id="box">
			
		</div>
	</div>
<script src="https://cdn.staticfile.org/jquery/3.2.0/jquery.js"></script>
<script type="text/javascript">
console.log((0.1).toString(2), (0.1).toString(2).toString().length) //0.0001100110011001100110011001100110011001100110011001101
console.log((0.2).toString(2), (0.2).toString(2).toString().length) //0.001100110011001100110011001100110011001100110011001101
</script>
</body>
</html>

